Numerical control bending machine transmission system and numerical control bending machine

Abstract

The invention discloses a numerical control bending machine transmission system and a numerical control bending machine. The numerical control bending machine transmission system comprises a sliding block body and a ball screw driving mechanism, wherein stress parts are uniformly distributed on the sliding block body, the plurality of ball screw driving mechanisms are arranged, and the ball screwdriving mechanism is used for applying downward acting force on the sliding block body through the stress pieces on the sliding block body. According to the numerical control bending machine transmission system and the numerical control bending machine, the sliding block body is provided with the plurality of stress pieces, the ball screw driving mechanism directly applies force to the stress pieces, the stress pieces applies force to the sliding block body, due to the fact that the stress pieces are uniformly distributed on the sliding block body, the stress distribution on the whole slidingblock body is more uniform, the sliding block body moves downwards so as to realize bending machining of parts, moreover, the bending force applied to the parts by the sliding block body is uniformlydistributed in the range of a whole working table, so that the relatively large deflection generated during bending machining especially bending machining of long-size medium-thickness plate parts isovercome, and the machining precision and the consistency of the precision can be improved.

Description

technical field [0001] The invention relates to a transmission system of a numerically controlled bending machine and a numerically controlled bending machine, belonging to the technical field of bending machines. Background technique [0002] Existing bending machines / press brakes usually use two or more hydraulic cylinders to drive the upper slider of the bending machine and then drive the upper mold to slide up and down so as to realize the bending process of the parts. This kind of traditional bending machine is affected by the form of its driving mechanism and the hydraulic system itself. The processing accuracy and accuracy consistency of the equipment are relatively poor, and the aging and oil leakage of hydraulic system parts also often occurs. In addition, because the driving cylinder is located at the shoulders on both sides of the upper slider, it is impossible to realize the uniform distribution of the bending driving force in the entire range of the workbench. B...

AI Technical Summary

Problems solved by technology

This kind of traditional bending machine is affected by the form of its driving mechanism and the hydraulic system itself, the processing accuracy and accuracy consistency of the equipment are relatively poor, and the phenomenon of aging and oil leakage of hydraulic system parts often occurs

In addition, because the driving cylinder is located at the shoulders on both sides of the upper slider, it is impossible to realize the uniform distribution of the bending driving force in the entire range of the workbench. Bending processing, especially when bending long-sized medium-thick plate parts, will cause large The deflection affects the accuracy of the machined parts

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